Roll winding machine



w. H. CANNARD ET AL 1,819,406

ROLL WINDING MACHINE Aug. 18, 1931.

Filed oct. s, 1927 e sheets-sheet 1 Aug. 18 193i@ w. H. cANNARD ET AL1,819,406

ROLL WINDING MACHINE Filed OG'C- 5. 1927 6 Sheets-Sheet 2 Aug. fls,1931. w H, CANNARD ET AL 1,819,46

ROLL WINDING MACHINE Filed Oct. 3, 1927 6 Sheets-Sheet 3 Aug. 18, 1931.w. H. CANNARD ET AL 1,819,405

ROLL WINDING MACHINE Filed Oct. 3. 1927 6 Sheets-Sheet 4 15u/emrah' Aug.18, 1931. H. CANNARD E'r AL 1,819,406

ROLL WINDING MACHINE File@ oct. s, 1927 6 sheets-'sheet 5 Iwan/ r4:@9W/Zi fauna/rd and e772 G.Lewzla,

Aug. 1s, 1931. w Hj CANNARD ET M 1,819,406

ROLL WINDING MACHINE Filed Oct. 3. 1927 6' Sheets-Sheet 6 1 f. l .lmllllll l lllllllllllllllllllllllllllllllllll .l

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l Patented ug. 18, ,1931

PATENT OFFICE .n UNITED sTATl-:sI

WILLIAM n. CANNARD, or GREEN BAY, AND ALLEN o. LEWIS, or LA oliossE,

- wIsooNsIN i ROLL WINDING MACHINE Application ined october s, 1927.serial No. 223,756.

This invention relates to roll winding machines and, more particularly,to machines for winding toilet paper rolls. In machines of this type,there is generally 5 'provided a' rotatable carrier in the form of adrum orreel, which carrier supports a plurality of core-holdingelements, usually spindles, or mandrels. These spindles areremovedfromxthe`V carrier in o rder t' place 0 cores thereon and, whenthe lwinding operation has been completed, they are again removed inorder' to remove the wound rolls therefrom.

It is an object of this invention t0 render 5 automaticcertainoperations which have heretofore been done bv hand.

It is a further object of this invention to provide a roll-windingmachine with means for automatically applying cores to the core- 20holding elements, which means, while automatic, shall always be withincontrol of the operator.

p It is anotherobject of the invention to provide means for supplyingcores to the 23 automatic core-applying means.

:a pleted.

Another obiectj of the invention is to provide mechanical means forstripping the wound rolls from the core-holding elements when thewinding operation has been corn- It is a further object ot thisinvention to construct a machine embodying the features described and inwhich the cycle of operation includes four steps, as follows: Apply- 5ing cores to the core-holding members, ap-

member are brought into contact with an adhesive-applying roller, thepaper is being wound upon the cores on the next preceding member, andthe wound rolls upon the fourth member are being stripped therefrom.

o Other obje-'cts and advantages of the invention will in part beobvious and in part more fully brought out as the description proceeds.

In the accompanying-drawings, we have illustrated an embodiment of ourinvention; but it is to be understood that the drawings are illustrativemerely and that they are, in no way, intended to limit or restrict us tothe details of construction therein shown.

In the drawings Figure' 1 is a front View of the machine, the supplyhopper being broken away for convenience in illustration;

Figure 1a is a side view of the supply hopper;

Figure 2 is a side elevation, showing in dotted lines certainconventional features of this type of machine which form no part of ourinvention;

Figure 2a is a view, on a larger scale, of the carrier supportingbracket;

Figure 3 is a side elevation, opposite to that illustrated in Fig. 2;

Figure i is a plan view of the core-applyin g mechanism Figure 5 is asectional view of the timing mechanism 'for the core-applying means andtaken substantially on line 5 5 of Fig. 1;

Figure 6 is a sectional view of the core supplying hopper, the feedingtube being shown in elevation;

Figure 7 is a detached view of a cam used in connection with the hopperillustrated in Fig. 6; ,Y

Figure 8 is a fragmentary view of the lower end ci the feed tube;

Figure 9 is a detail of the spindle supporting` member;

igure 10 is a sectional View of the spindle supporting memberillustrated in Fig. 9;

Figure 11 is a front elevation of the stripping mechanism, certain partsbeing shown in section; i

Figure 12 is a -sectional view taken on line 12-12 of Fig. 11;

ligure 13 is a sectional viewof the carrier; an

Figure 14 is a diagrammatic illustration of the position of the spindlecarrying the cores to which adhesive has been applied when the core isto be brought into contact with the web of paper.

lindicates the frame ofthe machine.

l mounted. There are four such spindles each of which may be movedsuccessively to a series of predetermined positions'by rotation of thecarrier-f. It will be noted that the spindles are supported by'thecarrier only at one end except when a spindle isin winding position atwhich time itl is supported at the other end by means to be hereinafteryfully n described.

The spindles 6 are rotatably mounted in the carrier 5 by the meansillustrated in Fig. 13; Each spindle is provided with an'eXtension 7bearing in the carrier and projecting a short distance beyond thecarrier. To this proj ection is secured (a, disk 8, which, when thespindle is in roll-Winding position, contacts with a leather-faced plate9 through whichrotary'motion is transmitted from the main drive shaft tothe spindle. The bearings for thespindles( in thecarrier may be providedvwith anti-friction rollers 10.

The means for supporting. the spindles When4 in roll-winding position isillustrated .in Figs. 9 and 10. -This means comprises an arm 11 securedto the bracket 2 and provided at one end with'a bearing for the spindlesupporting number 125- The member 12 is provided at one end with aconical nose 13 adapted to be received in an opening in the end of aspindle 6. Anti-friction rollers 14 are rovided in order to insure freerotation he member 12 in its bearing. The member 12 is maintainedinlengagement with-the spindle by the action of the spring 15. rIVhemember 12 is also provided with a circumferential groove 16 whichreceives the yokeshaped end of a lever 17, by operation of which themember 12 may be withdrawn from the spindle against 'the action of thespring 15. The lever 17 is operated by a'handlev 17 at the right side ofthe machine which is connected to the lever by means of a rod passingthrough the hollow7 shaft 4. l

Upon rotation of the carrier, the spindles are successively brought intoa' position in alinement with the automatic core-applying mechanism nowto be described. This mechanism includes a supply hopper 1 supported byan arm 19 secured to a stationary bracket 20, as illustrated in Figs. 1aand 6. A plurality of rods 21 are located within the hopper and conformsubstantially to the shape thereof. The rods are rotated through apulley 22 driven by a belt'23 and they are also reciprocated by means ofthe stationary cam rollers 24 working in the cam 25. Since it is notessential that this mechanism be timed with the othcr'operations of themachine, the pulley 22 may be driven from any convenient partof themachine. Cores are placed in the hdpper 18 in a disarrangcd massand,by,mo tion of the rods 21, they are straightened out and descend bygravity in a vertical position through the tube 26 to the applyingmechanism. The lower end of the tube 26 is composed of two hingedlyconnected sections 27 and 28, so that when the pins of the applyingmechanism engage a core, itwill be drawn down from' a vertical to ahorizontalposition 'to be applied to aspindle.l

The core-applying mechanism is best illustrated in F ig'. 4. Thismechanism comprises a pair of sprocket ch-ains 29 trained about the,

sprocket wheels 30 and so arranged that one -chain travels in clockwise-and the other in counter-clockwise direction. Each chain is `providedwith tightening means 31. The chains are also provided. with apluralityA of pin blocks 32, rubber blocks 33, and stopblocks 34, allspaced along each chain at desired intervals. The pin blocks 32 carrypins 35 which, in the travel of the chains, engage a core 36 and drawit. out, of thev tube 26. By

" constructing the -lower end of the tube in two hingedlyconnected'section's, the core is permitted to fall into a horizontalposition where it is eng/aged and frictionally held by the rubber blocks33. The core is then carried by the chains and slipped onto the spindle6.

Mounted adjacent the sprocket chains is a ratchet wheel 37 operated by apawl y38 connected to a lever 39. One end o'f the lever 39 projects intothe path of the stop blocks-34 and as one of these blocks engages theend of the lever the pawl'is operatedrtov rotate the ratchet wheelthe'distance of one tooth. v

The-. step-bystep motion lot 'the ratchet wheel 37 operates the timingmechanism best illustrated in Fig. 5. The ratchet wheel 37 is mounted ona small shaft or pin 40 on which is also mounted the-notched wheel 41. Aspring-pressed pawl 42 engages the notch in the Wheel41 when themechanism is in inoperative position. The pawl 42 is connected to alever 43, the other end of which connects with a ,bell-crank lever 44.One arm of the bell-crank lever is connected to an operating rod 45which is provided with a handle (not shown) at the right side of themachine. The other arm of the bell-crank lever operates the levers 46and 47 which are the gear 53 which meshes with the gear 54 .on the shaft55 andthe bevel gears 56 andv57. By this means the gears 58 and 59 aredriven and transmit motion to the sprocket wheels 30 and their chains29, as above described.

It is believed that the operation of the coreapplying mechanism will nowbe clear. The timing mechanism being ininoperative position asillustrated in Fig. 5, the operating rod 45 is rst actuated whichsimultaneously releases the brake 52 and lets in the clutch 51. Also,the awl 42 is withdrawn from the notch in t e wheel 41. The mechanism isnow in'operation and the ratchet wheel 37 is rotated which, in turn,rotates the notched wheel 41. When the latter has made a completerevolution, the pawl 42 drops into the notch, thereby actuating thelever 43 which actuates the bell-crank lever 44 and the levers 46 and 47to thereby'simultaneously let out the clutch and apply the brake. Themechanism is now restored to inoperative position.

It will be understood that the use of the automatic core-applyingmechanism is not confined to the particular roll-winding machine hereindescribed, but that it may be provided as an attachment for vother ma`chines of this character now in use.

When a spindle has been loaded with cores by the above describedmechanism, the carrier is rotated to bring the cores into contact with aglue-roll 60, yieldably supported in bearings 61 provided with springs62. The roll is supported in contact with glue or other adhesive in thetrough 63 mounted upon the frame l by means of brackets 64.

When the winding operation has been completed, the carrier is againrotated and the wound rolls are stripped from the core-holding membersor spindles by the mechanism illustrated in Figs. 1 and 11 which willnow be described. A screw threaded rod 65 is journaled in bearings inthe brackets 2 and 3 and is turned by the pulleys 66 and 67 through theclutch 68. The clutch is oper-- ated by the hand lever 69 connected tothe shaft 70 passing through the rod 65. Mounted in the brackets 2 and 3above the rod 65 is a guide rod 71. A pair of hingedly connectedstripping fingers 72 have collars encircling the guide rod and threadedportions engaging the threads on the rod 65. The stripplng fingers arenormally located at the right side of the machine in the open positionindicated by dotted lines in Fig. 12. When the wound rolls are to bestripped from the spindles, the lever 69 is actuated whichsimultaneously closes the stripping fingers 72 by means of the lever 73and lets in the clutch 68. The stripping fingers travel along thethreaded rod 65 with their lower ends in contact with the wound rolls.At the end of their travel, the fingers are separated by the cam 74 andcontact the stop block 75 whereby the clutch is disengaged the rotationof the rod 65 is reversed'and the stripping fingers are returned totheir normal position vat the right side of the machine in contact. withthe `adjustment stops 76. They remain in open posltion until the lever69 is again operated.

Paper is supplied to our machine by the means illustrated in dottedlines in Figs. 2 and 3.4 This means includes the usual perforating,slitting and feeding rollers well known in the art and, since this formsno part of our invention, no further description need here be given.

In Fig. 14 we have illustrated diagrammatically the position of thespindles when the glued cores are to be brought into contact with theweb of paper. As will be noted from this figure,when a roll has beenwound and the carrier is rotated to present the rolls to the strippingmechanism, the web is elevated to such an extent that the followingspindle will not contact therewith when in roll-winding position,indicated by It. To bring the glued cores into contact with the web w,the carrier is given a slight additional turn to present the spindle inthe position indicated at R2. A part of the lue is thereby transferredto the web which is then severed by a mechanism well known in the art.The spindle is then returned to the position R and the winding operationis again started.

It is believed that the construction and operation of our machine hasnow been fully and clearly brought out and that its many advantages willbe apparent to those acquainted with this type of machine.

While we have described in considerable detail the embodiment of ourinvention illustrated in the drawin s, it is to be understood that weare not limited thereto since many modifications may be made, which willfall within the scope of our invention as defined in the followingclaims.

What we claim is:

l. In a roll-winding machine, the combination of a carrier, acore-holding member supported at one end by said carrler, means forautomatically applying cores to said member, and means for supportingthe other end of said member after the cores have been applied thereto.

2. In a roll-winding machine, the combi-- nation of a movable carrier, acore-holding member supported at one end thereby, means forautomatically applying cores to said member while in a position, andmeans for supporting the other end of said member after the cores havebeen applied thereto.

3. In a roll-winding machine, a plurality of core-holding members, meansfor moving said members successively to a predetermined position, andmeans for automatically applying a plurality of pre-formed cores to saidmembers while in said position.

4. In a roll-Winding machine, a plurality of core-holding members, meansfor moving said members successively to a predetermined position,mechanism for automatically applying cores to said members while 1n saidposition, means for starting the operation of said core-applyingmechanism, and means for rendering said mechanism inoperative when apredetermined number of cores have been applied to one of said members.

5. In a roll-winding machine, a plurality of core-holding members,Imeans for moving said members successively to a predetermined position,mechanism for automatically applying cores to said members while in saidposition, arbitrarily actuated means for starting the operation of saidcore-applying mechanism, and automatic means effective to render saidmechanism inoperative when a predetermined number of cores have beenapplied to one of said members.

6. An automatic core-applying mechanism for roll-Winding machinesprovided with core-holding members, including movable means providedwith core-engaging elements, mechanism for moving said movable means,whereby cores will be applied to a core-holding member, and meansassociated with said movable means to render the mechanism inoperativeWhen a predetermined number of cores have been applied to a core-holdjngmember. p Y

7 An automatic core-applying mechanism for roll-winding machinesprovided with core-holding members, including sprocket chains,core-engaging elements on said chains, means for driving said chains toapply cores held by said Ielements to a coreholding member, and meansoperated by motion of said chains to render the mechanism inoperativewhen a predetermined number of cores have been applied to a core-holdingmember.

8. An automatic core-applying mechanism for roll-Winding machinesprovided with core-holding members, including sprocket chains,core-engaging elements on said chains, means for driving said chainsWhereby cores engaged by said elements will be applied to a core-holdingmember, a ratchet wheel, means on said chains for imparting astep-by-step movement to said ratchet wheel, and means associated withsaid ratchet wheel to render the mechanism inoperative when apredetermined number of cores have been applied to avcore-holdingmember.

9. An automatic core-applying mechanism for roll-winding machinesprovided with `core-holding members including a pair of sprocket chains,means for driving said chains, core-engaging elements on said chainsadapted when the chains are movedto apply cores to a core-holdingmember, a ratchet wheel, means on said chains for impart step-by-stepmovement to said ratchet wheel, a notched wheel operated by said ratchetwheel, and means engaging the notched wheel effective to stop movementof the chains when a predetermined number of cores have been applied toa core-holding member.

10. In a roll-winding machine rovided with core-holding members, meansor automatically applying cores to said members, a supply hopper adaptedto contain cores, means for conveying cores from said hopper to thecore-applying means, and mechanism for rendering said core-applyingmeans inoperative When a predetermined number of cores have been appliedto said members.

11. In a roll-Winding machine provided with core-holding members, meansfor automatically applying cores to said members, a supply hopperadapted to contain cores, a chuteleading from said hopper to thecoreapplying means and having separable parts, a plurality of rods insaid hopper, means for agitating said rods, whereby the cores in saidhopper are straightened out and descend in order through the chute tothe core-applying means, and means on said core-applying means forseparating said parts to permit withdrawal of cores from said chute.

12. In a roll-winding machine provided with core-holding members, meansfor moving said members to a plurality of predetermined positions, meansor winding material upon said members while in one position, and meansfor stripping the Wound rolls from said members while in anotherposition, said stripping means including a threaded rod, strippingelements movably mounted on said rod and having portions adapted toengage the wound rolls, and means for imparting motion to said rod,whereby said elements will move along the rod and strip the rolls fromsaid members.

13. In a roll-Winding machine rovided with core-holding members, meansor winding material upon said members to form rolls, and means forstripping the Wound rolls from said members, said stripping meansincluding a threaded rod, a pair of hingedly connected strippingelements movably mounted upon said rod and having portions adapted toengage the rolls, means for imparting motion to said rod, whereby saidelements will travel along the rod and strip the rol'ls from saidmembers, and means for reversing the motion of said rod, whereby saidelements will be returned to their initial position.

14. In a roll-winding machine, a core-holding member, means for applyingcores to said member, means for supplying cores to said core-applyingmeans including a chute having separable parts, and means on saidcoreapplying means for periodically separating said parts to permitremoval of cores from said chute.

iiaeee 15. In a roll-winding machine, core-applying mechanism includingspaced movable members, a spindle adapted to be positioned between saidmovable members, means for supplying cores to said .core-applying mech`f anism, and means on said movable members for engaging said cores,whereby upon movement of said movable members the cores will be`vapplied to said spindle.

16. in a roll-Winding machine, a spindle supported at one end and havingits other end free, means for supplying cores to said machine, andmechanism interposed between said core-supplying means and the iree endof saidspindle and operative te withdraw cores from said core-supplyingmeans and apply l them to the free end of said spindle.

17.. lin a roll-Winding machine, a spindle supported at one end andhaving its other end free, means for supplying cores to said machine,mechanism interposed between said core-supplying means and the free endof said l spindle and operative to Withdraw cores from saidcore-supplying means and apply them to the free end of said spindle,'andmeans for rendering said mechanism Vinoperative when a predeterminednumber of cores have been applied to said spindle.

' n testimony whereof We ax our signatur@l 'WUJLIAM H. CANNARD. Y i ENG., LEWS.

